Pretreatment agent for subject fluid in pregnancy test
US4270923A · kind A · utility
7Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 26, 1979 |
| Grant date | Jun 2, 1981 |
| Priority date | — |
| Expiry date | Dec 26, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/825
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
By using a new pretreatment agent consisting essentially of a carboxylic acid-type cation exchange resin fiber or a siliconized glass fiber, the interfering components and the elements of turbidity present in a subject fluid for immunologic pregnancy test can be specifically removed without entailing a substantial loss of human chorionic gonadotropin contained in the subject fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.